home *** CD-ROM | disk | FTP | other *** search
- From: Frank.Mallory@f417.n109.z1.fidonet.org (Frank Mallory)
- Sender: Uucp@blkcat.UUCP
- Path: sparky!uunet!blkcat!Uucp
- Newsgroups: rec.autos.tech
- Subject: Blueprinting - What is it.
- Message-ID: <714143557.F00001@blkcat.UUCP>
- Date: Tue, 18 Aug 1992 00:24:02 -0500
- Lines: 21
-
- TC> (DOERSCHUK,DAVID OAKES) writes:
- TC> [description of blueprinting]
- TC> >1. Take a die grinder and smooth the interior of the ducts.
- TC> >
- TC> >2. Put the sheet of blue carbon-paper-like material between
- TC> > the ducts, and bolt the ducts together. Then unbolt'em.
- TC> > From the pattern of blue carbon on the 2 duct faces (i.e.
- TC> > the exhaust manifold and the head) and also by looking at the
- TC> > pattern on the blue sheet itself, you can figure out what
- TC> > parts of the manifold or head need to be ground away to
- TC> > make the junction smooth.
- TC>
- TC> then what's porting and polishing?
- TC> is that the same as blueprinting?
-
- In porting and polishing, the emphasis is on enlarging and smoothing out the
- ports. The manifold gasket can be used as a template for matching up the ports,
- but it is probably not as exact as the blueprinting method.
-
-
-
-